Key holder



FIG. 1 is a front perspective view of a key holder showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left end elevational view of FIG. 1;

FIG. 4 is a right end elevational view thereof;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a key holder, substantially as shown. 